JPS5921099Y2 - Vehicle body connection structure of automobile roof rail part - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in the structure of a roof rail portion of an automobile that connects to a vehicle body.

As shown in FIGS. 5 and 6, the structure of the conventional car body joint of the roof rail portion of an automobile is made by overlapping and spot-welding the edges of both sides of the outer roof rail 06 and the inner roof rail 03 extending in the vehicle width direction to form a closed cross section. The end of the roof bow 02 extending in the width direction of the vehicle body is attached to the inner overlapping part of the roof rail by spot welding 05, and the central longitudinal groove 07 of the roof bow 02 is filled with adhesive 04. Install the roof panel 01 through the roof rail 04, and install the roof rail inner rain gutter part 0.
3B was spot welded to form the vehicle body joint.

This conventional roof rail joint structure with the vehicle body requires a large number of parts and a correspondingly large number of welding points, which not only requires additional assembly time, but also involves the edges of both ends of the joint between the outer roof rail 06 and the inner roof rail 03 being connected to the vehicle body. Although it can absorb accuracy errors in the lateral direction because it extends in the front-rear direction,
Accuracy errors in the vertical direction cannot be absorbed.

Therefore, if there is a dimensional error in the vertical direction in the part joining part, the assembly becomes difficult, and there is a problem that the assembly causes distortion in the parts later.

The present invention has been made in order to solve the above-mentioned conventional problems, and the roof bow body has a roof rail outer along the outer edge of the vehicle body at both ends of the roof bow body having grooves extending in the width direction of the vehicle body and oriented in the same direction. An outer flange is integrally molded from a single plate as an end member of the roof rail outer, and an outer flange is formed on the outer edge of the roof rail outer and extends substantially horizontally in the vehicle width direction and in the longitudinal direction of the vehicle body, and an outer flange is formed on the inner side end of the roof rail that extends toward the interior of the vehicle. A roof bow is formed with an inner flange that is bent diagonally downward to form an inclined inner flange, an end flange extending in the longitudinal direction of the vehicle body corresponding to the outer flange of the roof rail outer is formed at the outer edge end, and the groove portion is formed in the roof bow body portion. The roof panel is bonded with an adhesive filled with the roof panel, and the outer end thereof is spot-welded to the roof rail outer and the flanges at the outer edge of the roof panel to form a rain gutter portion extending in the longitudinal direction of the vehicle body. A vehicle body connection structure for a roof rail portion of an automobile, characterized in that the roof rail inner has an inner end formed with an inner flange that is tilted in the same direction as the roof rail outer inner flange, overlapped, and spot welded. The roof rail outer is integrally molded as an end member on both ends of a conventional roof bow extending in the width direction of the vehicle body, and the overlapping portion of the roof rail outer and the roof rail inner mating thereto at the end on the inside of the vehicle interior is formed. In particular, the overlapping portion is formed by a flange that slopes downwardly toward the inside of the vehicle, thereby absorbing variations in the vertical direction during assembly.

Next, one embodiment of the present invention will be explained in detail with reference to FIGS. 1 to 4.

Reference numeral 1 denotes a roof panel of a passenger car, and a roof bow 2 for reinforcing the roof panel is provided on the back side of the roof panel.

The roof bow 2 is an integral part that is integrally formed and molded with the roof rail outer.

That is, as shown in FIG. 2 (an enlarged view of part A in FIG. 1), the roof bow 2 is a roof bow main body 2' extending in the width direction of the vehicle body.
The roof rail outer 2'' is integrally molded from a single plate at the end of the roof rail outer 2'' as an end member.

The roof bow main body 2' has a groove 7 formed in the longitudinal direction of its center, the outer edge of the integral roof rail outer 2'' forms an outer flange 2b extending in the longitudinal direction of the vehicle, and the inner end of the roof bow extends toward the inner side of the vehicle. The inner flange 2a is formed by bending the inner flange 2a diagonally downward.

The outer edge of the roof panel 1 forms an end flange 1a extending in the longitudinal direction of the vehicle body, similar to the outer flange 2b of the outer roof rail 2''.

The inner roof rail 3 forms an outer edge rain gutter part 3b on the outer edge corresponding to the outer flange 2b of the outer roof rail 2'', and the end on the inside of the vehicle interior opposite to the rain gutter part 3b is formed in the same direction as the inner flange 2a of the outer roof rail. An inner edge flange 3a is formed which is inclined to the inner edge flange 3a.

Then, the roof panel 1 is adhered to the roof bow 2 with adhesive 4 filled in the groove 7 at the roof bow main body 2',
At the outer edge of the roof rail outer 2'', the end flange 1 of the roof panel is attached to the outer flange 2b extending in the longitudinal direction of the vehicle body.
a are overlapped and joined by spot welding.

In addition, the inner roof rail 3 is connected to a site structure assembly (not shown) and forms a roof rail with a closed cross section with the outer roof rail 2'', but the inner flange 2a of the outer roof rail and the inner edge flange 3a of the inner roof rail are connected to the interior of the vehicle. Since I bent it diagonally downward at the same angle, I attached the roof rail inner 3 to the roof rail outer 2''.
When the two flanges 2a and 3a are joined together, the overlapping portions of the flanges 2a and 3a are relatively displaced to absorb accuracy errors in the vertical direction of the vehicle body and prevent undue stress from acting on the roof bow body 2' and the roof panel 1.

Accuracy errors in the vehicle width direction can be absorbed by lateral movement at the mating surface between the roof rail inner outer edge rain gutter portion 3b and the roof rail outer 2'' outer flange 2b.

After positioning, the overlapping part of the flanges 2a and 3a on the inside of the vehicle is spot welded 5', and the roof panel is overlapped with the outer edge rain gutter part 3b of the roof rail inner, and the flanges 1a and 2b on the outer edge of the roof rail outer are triple-layered. Spot weld 5 the joints.

Since the present invention is constructed as described above, when the outer roof rail is connected to the inner roof rail, the ends of the outer roof rail and the inner inner roof rail are formed into flanges bent diagonally downward into the passenger compartment. The overlapping portion of the seven langes has the function of positioning the vehicle body by eliminating accuracy errors in the vertical direction, and the three overlapping portions in the outer edge rain gutter portion of the inner roof rail have the function of positioning the vehicle body in the width direction.

Therefore, during assembly, no unreasonable stress is applied to the parts during welding, and a highly accurate roof rail structure can be obtained.

Furthermore, in the present invention, since the roof bow is integrally molded with the roof rail outer, the number of parts is reduced, making assembly easier, and the number of welding points is reduced, resulting in a reduction in welding man-hours.

[Brief explanation of the drawing]

Figures 1 to 4 show an embodiment of the vehicle body connection structure of the roof rail portion of an automobile according to the present invention, Figure 1 is a perspective view of a passenger car in which the present invention is implemented, and Figure 2 is A of Figure 1. Figure 3 is a sectional view taken along the line 1-1 in Figure 2, Figure 4 is an enlarged perspective view of the
The figure is a sectional view taken along the line II-II in Fig. 2, Fig. 5 is a perspective view of a main part showing a part of the conventional roof rail joint structure with a cutaway, and Fig. 6 is a sectional view taken along line III-II in Fig. 5. It is a sectional view taken along line III. 1: Roof panel, 1a: End flange, 2: Roof bow, 2': Roof bow body, 2'': Roof rail outer, 2a: Inner flange, 2b: Outer flange, 3: Roof rail inner, 3a: Inner edge flange, 3b: Rain Groove, 4: Adhesive, 5, 5' spot welding, 7: Groove.

Claims (1)

[Scope of utility model registration request] A roof rail outer along the outer edge of the vehicle body is provided at both ends of the roof bow body having grooves extending in the vehicle width direction and oriented in the same direction as end members of the roof bow body.
The roof rail outer is integrally molded from a single plate, and the outer edge of the roof rail outer is formed with an outer flange that extends substantially horizontally in the vehicle width direction and in the longitudinal direction of the vehicle, and the inner end of the roof rail is bent diagonally downward toward the interior of the vehicle. a roof bow formed with an inner flange that is bent and inclined; an end flange extending in the longitudinal direction of the vehicle body corresponding to the outer flange of the roof rail outer is formed at the outer edge; and an adhesive filled in the groove in the roof bow main body portion. A rain gutter portion is formed on the roof panel adhered to the roof panel, and the outer end thereof overlaps with the above-mentioned roof rail outer and the above-mentioned flanges of the outer edge end of the roof panel and is spot welded to extend in the longitudinal direction of the vehicle body. A structure for connecting a roof rail portion of an automobile to a vehicle body, comprising: a roof rail inner formed with an inner flange that is inclined in the same direction as the roof rail outer inner flange, overlapped, and spot welded.